NPPES file of Aug 9, 2026

Doctors and health care providers in Orange, CA

13,245 individual NPPES records list a practice address in Orange, 11th of 812 California cities. The largest group is behavior technician: 4,271, 32% of the city's records, against 18% across California. Page 166 of 265.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Orange

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Orange in California

  • Rank in California11th of 812 cities by records
  • Share of the state1.4% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups42% of all records
  • Behavior Technician rank7th of the 10 California cities with the most

Compared with California as a whole, Orange has 7.3× the state's share of other technician records and 0.43× its share of physical therapist records.

Providers in Orange, alphabetically

  1. Martin Nation, MDOrthopaedic Surgery Physician1548494248
  2. Megan NatividadBehavior Technician1003798471
  3. Eloisa Naungayan-Ramirez, NPCritical Care Medicine Nurse Practitioner1376191551
  4. Matthew NaushaMarriage & Family Therapist1407279649
  5. Aline NavaBehavior Technician1750235214
  6. Allize NavaBehavior Technician1053139972
  7. Helen NavaBehavior Technician1548920051
  8. Jane Nava, OTR/LOccupational Therapist1528731353
  9. Joseph NavaBehavior Technician1306438692
  10. Marlene NavaBehavior Technician1609617554
  11. Rosio NavaDental Assistant1164669560
  12. Pournima Navalkele, MD, MPHPediatric Hematology & Oncology Physician1366671091
  13. Brittney NavarreteBehavior Technician1871278457
  14. Dora Navarrete, B.A.Mental Health Counselor1386822120
  15. Fabian NavarreteBehavior Technician1750065843
  16. Cristian NavarroBehavior Technician1801689609
  17. Cristina Navarro, NONEBehavior Technician1972232742
  18. Daisy Navarro, BA SOCIOLOGYCase Manager/Care Coordinator1710137120
  19. Efrain NavarroBehavior Technician1154187599
  20. Fernando NavarroBehavior Analyst1679332399
  21. Jasmine NavarroBehavior Technician1285585828
  22. Jennifer Navarro, MAPsychologist1407365091
  23. Karla NavarroBehavior Technician1144870551
  24. Kimberly Navarro, PA63196Physician Assistant1033784806
  25. Lizbeth Navarro, MSW, ASWClinical Social Worker1679022065
  26. Mark NavarroMental Health Counselor1871934620
  27. Natalie NavarroBehavior Technician1073211785
  28. Nicole NavarroMental Health Counselor1588201016
  29. Roman Navarro, M.D.Emergency Medicine Physician1154734671
  30. Teresita NavarroRehabilitation Practitioner1992986848
  31. Yanira NavarroBehavior Technician1063357820
  32. Kristopher NaylorBehavior Technician1225722820
  33. Samir Nazarali, MDOphthalmology Physician1366294209
  34. Alexander Nazareth, MDOrthopaedic Surgery Physician1649733460
  35. Anthony NazaryanStudent in an Organized Health Care Education/Training Program1285494260
  36. Sohrab Nazertehrani, MDDiagnostic Radiology Physician1760878037
  37. Sharron NealonBehavior Technician1942065271
  38. Alicia NeedhamBehavior Technician1861388191
  39. Caleb NegassiOther Technician1508522954
  40. Angelica NegreteBehavior Technician1871200253
  41. Beatriz NegreteClinical Social Worker1740326602
  42. Lessly Negrete-Tuy, B.C.B.A.Behavior Analyst1578008595
  43. Ricardo NegronFoot & Ankle Surgery Podiatrist1932548393
  44. Andrew NeiBehavior Technician1245105568
  45. Michael Neinast, DONephrology Physician1770105769
  46. Alicia NelsonStudent in an Organized Health Care Education/Training Program1053734376
  47. Christina Nelson, DNP, RN, AGACNP-BCNurse Practitioner1790499218
  48. Edward L Nelson, MDHematology & Oncology Physician1780764951
  49. Jessica NelsonClinical Social Worker1245787902
  50. John Stuart Nelson, MDSurgery Physician1316027584

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

How to read this directory

Orange, California appears in the CMS National Plan and Provider Enumeration System with 13,245 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Orange - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Orange practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Orange is weighted toward Behavior Technician (4,271 clinicians, followed by Student in an Organized Health Care Education/Training Program with 870 and Marriage & Family Therapist with 424). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to California's population, Orange reports roughly 34 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Of California's most common specialties, Case Manager/Care Coordinator is the most prominent one with no provider currently listing a Orange practice address, a coverage gap Orange patients typically fill by traveling to a larger nearby hub.

For Orange patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Orange, CA?

There are 13,245 registered healthcare providers in Orange, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Orange?

The most common specialties in Orange are Behavior Technician, Student in an Organized Health Care Education/Training Program, Marriage & Family Therapist, Clinical Social Worker, Mental Health Counselor. Behavior Technician has the most providers with 4,271.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.